A municipal solid waste digester generates $1000 \mathrm{~kg}$ of methane gas. The volume of the tank needed to store this gas at $30^{\circ} \mathrm{C}$ and 3 atmospheric pressure is __________ liters $\text{(an integer value)}$.
Use $\mathrm{R}=0.082 \mathrm{~L}-\mathrm{atm} / \mathrm{mole}-\mathrm{K}$, Atomic weights of $\mathrm{C}=12$, and $\mathrm{H}=1$
